we entered all my tax info and income and stuff, and i was pleasantly surprised. >> reporter: erin is in her 40s and has health issues but for the new law to work, the white house needs millions of healthy young people to sign up to make coverage more affordable for everyone else. the president made his pitch during a white house youth summit wednesday. >> i hope you haven't been discouraged by how hard it's been because stuff that's worth it is always hard. >> reporter: a new harvard university poll shows just 20% of americans under age 30 plan to enroll in a health care plan as part of the affordable care act. nearly half say they're unlikely to sign up. >> i would rather do the finer things, obviously. i don't know how much health insurance is but i know it's a lot more than that. >> reporter: the white house is hoping 7 million americans will sign up by april. now, as part of the administration's effort to focus on a different benefit, today the white house is going to be concentrating on insurance companies and getting word out how they are prohibited from discriminating against